muscle of arm A muscle organ that is part of an arm [Automatically generated definition]. EHDAA:8277 EMAPA:36053 MA:0000594 RETIRED_EHDAA2:0000142 See notes on UBERON:0001460 for possible terminological confusion over term 'arm'. MA uses this consistent with uberon (forelimb muscle is subdivided into shoulder, arm and hand) UBERON:0001499 UBERON:0003272 arm muscle arm muscle system arm skeletal muscle arm skeletal muscle tissue muscle of upper arm or lower arm uberon upper arm / lower arm muscle forelimb muscle